Yesterday morning, a Lucknow-bound IndiGo flight from Ahmedabad had to make an emergency landing due to a mid-air engine failure. The Airbus 320 Neo aircraft carrying 186 passengers landed safely at the Ahmedabad airport.

After observing that there have been 69 Pratt and Whitney engine failures as of September 15, and that the number of cases crossed 100, the DGCA grounded nine IndiGo and three GoAir planes with Pratt and Whitney engines yesterday.

Talking to India Today, Minister of State for Civil Aviation Jayant Sinha said, "All engines in the series that experienced trouble in India have been grounded. No aircraft with engines facing trouble will take off till the issue is completely resolved."

It is after this move that resulted in IndiGo cancelling 47 flights today.

IndiGo has 32 Pratt and Whitney engine planes out of which nine were grounded, and GoAir has 13 Pratt and Whitney engine planes out of which three were grounded by the DGCA yesterday.

An official statement from Pratt and Whitney said, "We are working closely with our customers to minimise disruption. The corrective action has been approved and we have already begun to deliver production engines with the upgraded configuration."

IndiGo released a statement yesterday on the DGCA's decision saying, "We are in receipt of the communication from the DGCA and we shall promptly comply with the directions of the DGCA. Upon implementation of the directive, IndiGo shall have a total of nine A320 Neo aircraft on ground. The affected passengers would be accommodated on other flights on our network. Safety is our top priority."

On March 1, a Kolkata-bound IndiGo flight had to return to Mumbai owing to engine failure. The IndiGo flight 6E-395 returned over a technical glitch (oil chip in one engine).